<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            clearable
            v-model="queryInfo.query"
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 商品列表表格区域 -->
      <el-table :data="goodsList" border>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格(元)"
          width="95px"
          prop="goods_price"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          width="70px"
          prop="goods_weight"
        ></el-table-column>
         <el-table-column
          label="商品数量"
          width="70px"
          prop="goods_number"
        ></el-table-column>
        <el-table-column label="创建时间" width="140px" prop="add_time">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="updateGood(scope.row.goods_id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
    <!-- 更新商品弹窗 -->
     <el-dialog
      title="修改商品"
      :visible.sync="updateDialogVisible"
      width="50%"
      @close="addCateDialogClosed"
    >
      <!-- 最该商品的表单 -->
      <el-form
        ref="updateCateFormRef"
        :model="updateCateForm"
        :rules="updateCateFormRules"
        label-width="80px"
      >
        <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="updateCateForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="updateCateForm.goods_price"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="updateCateForm.goods_weight"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="updateCateForm.goods_number"></el-input>
            </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="updateDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addGood">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表数据
      goodsList: [],
      // 总条数
      total: 0,
      updateDialogVisible: false,
      updateCateForm: {
        goods_name: '',
        goods_price: '',
        goods_number: '',
        goods_weight: '',
        goods_introduce:'',
        pics: '',
        attrs: '',
      },
      goods_id:'',
      updateCateFormRules: {
        goods_name: [
          {
            required: true,
            message: "请输入商品名称",
            trigger: "blur"
          }
        ],
        goods_price: [
          {
            required: true,
            message: "请输入商品价格",
            trigger: "blur"
          }
        ],
        goods_number: [
          {
            required: true,
            message: "请输入商品数量",
            trigger: "blur"
          }
        ],
        goods_weight: [
          {
            required: true,
            message: "请输入商品重量",
            trigger: "blur"
          }
        ]
      }
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表数据失败！");
      }

      this.goodsList = res.data.goods;
      this.total = res.data.total;
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getGoodsList();
    },
    async removeById(id) {
      //弹框提示是否删除该用户
      const confirmText = await this.$confirm(
        "此操作将永久删除该商品, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      //确定为：confirm；取消为：cancel
      if (confirmText !== "confirm") {
        return this.$message.info("已取消删除！");
      }

      const { data: res } = await this.$http.delete(`goods/${id}`);

      if (res.meta.status !== 200) {
        return this.$message.error("删除商品失败！");
      }
      this.$message.success("删除商品成功！");
      this.getGoodsList();
    },
    async updateGood(id) {
      const {data: res} = await this.$http.get(`goods/${id}`)
      if(res.meta.status !== 200) {
        return this.$message.error("获取商品信息失败！")
      }
      this.updateDialogVisible = true
      this.goods_id = res.data.goods_id
      this.updateCateForm.goods_name = res.data.goods_name
      this.updateCateForm.goods_price = res.data.goods_price
      this.updateCateForm.goods_number = res.data.goods_number
      this.updateCateForm.goods_weight = res.data.goods_weight
      this.updateCateForm.goods_introduce = res.data.goods_introduce
      this.updateCateForm.pics = res.data.pics
      this.updateCateForm.goods_cat = res.data.goods_cat
      this.updateCateForm.attrs = res.data.attrs
    },
    addCateDialogClosed() {
      this.$refs.updateCateFormRef.resetFields();
    },
    addGood() {
      this.$refs.updateCateFormRef.validate(async valid => {
        if (!valid) return;
        const {data: res} = await this.$http.put(`goods/${this.goods_id}`, this.updateCateForm)
        if(res.meta.status !== 200) {
          return this.$message.error(res.meta.msg)
        }
        this.$message.success(res.meta.msg)
        this.getGoodsList()
        this.updateDialogVisible = false;
      })
    },
    goAddPage() {
      this.$router.push("goods/add");
    },
  }
};
</script>

<style lang="less" scoped></style>
